Composition of matter for use in fire-brick and the like and process of producing the same.



UNITED STATES PATENT OFFICE.

LUKE HOUZE, OF MONTEREY, OALIFORN IA, ASSIGNOR OF FO URTEENSIXTIETHS TO CHARLES F. NIKLAUS, FOURTEEN-SIXTIETHS TO B. H. WILLEY, AND ONE-SIXTIETH TO ARTHUR:

BRANQUART, ALL OF MONTEREY, CALIFORNIA.

COMPOSITION OF MATTER FOR USE IN FIRE-BRICK AND THE LIIKE AND PROCESS OF PRODUCING THE SAME.

Patented May 18, 1909.

Application filed August 27, 1906, Serial No. 332,287. Renewed March 30, 1l309. Serial No. 486,816.

To all whom it may concern:

Be it known that I, LUKE Hours, a citizen i of the United States, residing at Monterey, county of Monterey, and State of California, have invented a new and useful Fire-Brick and Composition and Process for Producing the Same.

The main object of'this invention is to produce a composition for use in fire brick or for other purposes which will be extremely resistant to heat, without warping, running,

. vitrifying o r shrinkin In making the brick two ingredients -are i used, referred to herein as the binder and the filler. The binder consists of any suitable fire clay, and the filler consists of a rock of approximately the following analysis Silioa 87.76 Iron and aluminum oxid 2.44 Calciumoxid .50 Magnesium -Trace.

Loss on ignition-.. 6.54

' Undetermined, (alkalies and chlorin) 2.76

The two ingredients are used in proportions of 21 to 30 of fire clay and 79 to 70 of the filler, and are blended with suitable quantity of moisture to render them sufiiciently adherent to enable molding and pressing, and

the resultant bricks are burned in a kiln, at a temperature of about 3000 degrees F. There is thereby produced a fire brick which is more resistant to heat than the ordinary English or German fire brick and having still greater superiority over the American brick. The brick so produced is also firmer and stronger than the English, German or American fire brick and its weight is only about one-half the weight of any one of such-ordinary brick.

This material herein used as a filler is found to have great strength, and greater heat resistance than the grog or crushed brick heretofore used as a filler, and while its high preparation of silica renders it extremely refractory to heat, it contains enough of the aluminum and iron oxids to bind it together.-

The material may be made by compounding the constituents, or it may beobtained from natural deposits. I

The fire clay used is that known 'as Santa Cruz fire clay from Santa Cruz county, California, or fire clay of the same properties.

What I claim is 1. A composition for use in a fire brick consisting of about twenty-one parts of fire clay binder with about seventy-nine parts of a filler consisting of hydrophane which is roasted and crushed to a state of coarse division.

2. A com ositionfor use in a fire brick consisting 0' about twenty-one parts of fire clay binder with about seventy-nine parts of a filler consisting of a rock of substantially the composition stated which is roasted and crushed to a state of coarse division.

3. The method of making fire brick which consists in roasting hydrophane, crushing the product to a state of coarse division, mixing the same with fire clay, and then molding and burning the mixture.

4. The method of making fire brick which consists in roasting a rock of substantially the composition stated, crushing the product to a state of coarse division, mixing the same with fire clay, and then molding and burning the mixture.

5. A fire brick consisting of a filler of hy- I drophane, roasted and crushed to a state of' In testimony whereof, I have hereunto set coarse division, and a binder of fire clay. my'jhand at Monterey Californiethis 14th 6. A fire brick consisting of about twentyday of Aug. 1906. one partsof fire clay binder With.ab0'ut LUKE HOUZE.

seventy-nine pints of efiller consisting of In presence of hydrophane roasted and crushed to a State H. D. SEVERANCE, of eoarse division. C. V. Hown. 

